Method oe harvesting sttjups



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z m iim E. A. McKOY AND a. n. MOORE.

METHOD OF HARVESTING STUMPS APPLICATION HLED MAY 20, 19 21- ReissuedJune 27, 1922.

E. A. McKOY AND a. n. MUDRE.

METHOD OF HARVESTING STUMPS.

APPUCATION FILED MAY20,1921.

Beissfied June 27, 1922. 1 5,394.

2 SHEEISSHEET 2.

ma/exvroras, 6M 0. waif UNITED STATES PATENT OFFICE.

EDWIN A. MOKOY AND GEORGE D. MOORE, OF NEW ORLEANS, LOUISIANA.

METHOD OF HARVESTING STUMPS.

Specification of Reissued Letters Patent. Reissued June 27, 1922.

Original application filed September 21, 1917, Serial No. 192,567.Renewed July 9, 1919, Serial No.

309,767. Original No. 1,313,709, dated August Serial No. 471,257.

To all whom it may concern:

Be it known that we, EDWIN A. MoKoY.

and GEORGE D. MOORE, citizens of the United States of America, andresidents of New Orleans, in the parish of Orleans and State ofLouisiana, have invented certain new and useful Improvements in Methodsof Han vesting Stumps, of which the following is a.

specification.

This invention relates to a method of harvesting stumps and has for anobject to provide a method of disintegrating standing stumps andconserving the disintegrated material for further use in the arts.

It has heretofore been proposed to disintegrate standing stumps by meansof a ro-. tary cutter, but in such prior attempts, the

' Serial No. 471,259, filed by these applicants,

coincidentally herewith, for the reissue of their Patent No. 1,313,708,is disclosed a mechanism which can be employed incarrying: out thepresent process although the present process or method is not confinedto the use of such specific mechanism. For

- the purpose of illustrating one ofthe means for carrying into effectthis method, the.

mechanism which forms the subject matter of the above'identifiedco-pending application, is illustrated again herewith.

In the drawing:

Figure 1 is a perspective view of the improved mechanism mounted upon'adirigible power plant of the type ordinarily known as a caterpillartractor;

Figure 2 is a perspective view of vention disclosing a different mannerof conserving the cuttings from the boring tool, and l 3 Figure 3 is aview, partly in side elevation and partly in diametrical section, of theboring tool and housingtherefor. As disclosed in said co-pending application, the device there illustrated comprises the in- 19, 1919.Application for reissue .filed May 20, 1921.

'I- is tool or cutter head is in the form of a solid of revolutionusually of a diameter at least as large as the diameter of the stump tobe harvested, but where the stump is extraordinarily large, this is notpractical, and is preferably of hollow construction, being.

provided with knives arranged to deliver inwardly into the 'hollow ofthe head. By way of example, the cutter head ll illustrated in thedrawings, is shown as in the form of an inverted cone, having a hollowinterior, as indicated at 11,, andprovided with slots or openings 11 inits conical wall.

In these openings are set knives 11, arranged with their cutting edgesprojecting slightly beyond the working face, so that the cuttings orchips from said knives pass inwardly through the openings 11 into theinterior of thehead. As shown in Fig. 5, the upper end of the cutterhead is open,

and over this open end is disposed a housing13, with its lower edgeengaging a groove 11 formedaround the base of the conical cutter head.It will be understood, that, as fully explained, in the above identiisheld against rotation, but travels with the cutter head inits verticalmovement. From a suitable outlet,13 of the housing, thedisintegratedmaterial may be discharged .di-

conduit 15 and exhaust mechanism 16, to a receptacle such as the bag 17In operation, the dirigible vehicle or tractor is manipulated so astobring the boring or cutting tool or head into proper positionimmediately above a stump to be harvested. If, as is usually the case,the stump is no larger than the diameter of the cutter head, such headis approximately centered relative to the stump. If the stump isexceptionally large, it may be necessary to position the cutter head atone side of the center, but, in any event, the cutter head is properlypositioned, and, then, while being continuously fied co-pendingapplication, the housing-13 'rect-ly to any convenient .receptacle asthe V v, sheet 14 (as shown at Fig. 2), or-through a II dients' whichcan be ezgtractedTfrom the i 1 teallybr by heat; as for iii-- 5 anddisintegrate the stur n f) 12, cutting the; material up substantiallyacross the grain iht'b shiall" particles I "(if granular appearance siar in g'eneral 'appeamn'ce to sawdust In many parts of th'e' countrytheife are standing stumps c'ontainingvaluable ingre term niade fercutting away or tanding ne provision'has or e6i1s'ervin'g the butmaterial, I a t invtntibh relates to the cenv I ha g knives arranged to"deliver in- 35" wardl into a diameter afpptekimately' as large at leastdiameter tebe harvested and applyses', .previdin 'a, helle'w eo'niealeute'a'd rdl'f y it ihined dep s itoiyiaiid' applying head to rdi'yrdtating 'the head and "lyas large a's the d1'- d; 'tvith a' t asingabout euttgeif headarranged liver the cuttings e sa'd 'head teth h"material fOi' fiirthfer aetioni" dr ntili'zati'on The iitilizatien ofthe Ina- 1'- disitegratd "from the will suhjedt niatteribfnther and furahollevv conical gutter mahoiiow bf the head mayor said Headtetheii'p'fie'r end (if astninpit 'ddWnWardIy therein vvhi1e' I I I I I .i II I I I the euttingste ajdefiniite. reheptaele; I vi'ocessoff'harvesting'stumps which 8: The herein deseribedymethod 6f:hart-W I having. knives arranged to I deliver ow Of the head and of elyas largeajs t-he di prbviding a heusing I from the interior of them to aire-deter;

'tt tpper end of stamp and fer-ding itvesting s'mmps which I "cutterhead "of 'a di -grail1'by'1i1'neans'0f a rotary 'cutterfg and comeentrating andrdirecting the fldvvj' 'of chips I kt hlrdwii ofihysu'h'eutter.

" w the" housing, and? try and npfly ap e via mp a as large as thediam'eter to be harvested and 7 applying said headte the apneaend of astump and forcing it downwardly therein While rotating the Head: II f 5:The prdc'e'Ssnf harvesting stumps v'vhich comprises, providing-a hollowcutter head having knives arranged =te cdje1ivei' eutti n sv "into theh'oliownoftheheadgjand Of a fainetei' apprbxiifnat'eiyv as largelas the(11- amet'er to be harvested, providing a ho sin t0 receivet-he cuttingsfrom the interim pf the head and deliver them to a pee-determined;depb'si-tOry and applying "said head to the upper end Of a stuirn p a"forcing it dbwnwardly therein'while rota g the Head.

6. The process ofharvesdn stu p s comprises; providing a bellow cutterhead of diameter ap roximately "a'slarge as the diameter to beharvestedywith a housin 'abo' i't said cutter head; said cutter headarranged to deliver theciitting intu t-he hous- I I ing ahdthehousingarranged to deliver the c uttingsto predetermined depository and aplying I the said head to t the I up er end: "of

a stum'p'and forcin th cutter and housing d'evvnwar'dly vvhii'erotatingthe eutter head and holding the housing against r'etati'on. I

7. The herein described methed" of har-Q vesting: stumps which* eensistsf in v progressiv'ely I cutting awaythe stnmpbyvmeans "of a rotarycutter; and cenfining and: directing sively 1 disintegrating, thestiinip frein the a top a downward, and eonfining and collecting thedisintegratedmaterial; r

a a The herein "described method- 0f har- 1 vesting .-stumps whichconsists-in progres- I sively i disintegrating the stiimp by means of a'rotary cutter; 'zcenfiningthe disintegrated material as itisthrovvneifi bysii'ch (butter,

and continuouslydirecting it to i-ec'eptadeh '1' 10. The'hereindescribed' methodi 'ofi har-- vestingl 'stiimps which consistsprogrestures. a a a v I EDWIN aMdKeYw s enenen D OQ EI

